go
redirweb1.reg.free.org, redirweb2.reg.free.org, redirmail2.reg.free.org, redirmail1.reg.free.org, redirmailobfusc2.reg.free.org and at least two other hosts are subdomains to this hostname. free.org is a domain controlled by three nameservers at free.org themselves. Two of them are on the same IP network. Incoming mail for free.org is handled by two mailservers also at free.org. They are on the same IP network. free.org has one IP number.

free.org
a records
 
+ 212.27.48.10 212.27.32.0/19 AS12322  
+ ---  
ns-soa records
ns0.free.org
+ 88.191.249.136 88.160.0.0/11 AS12322 -
+ --- -
ns records
ns0.free.org
+ 88.191.249.136 88.160.0.0/11 AS12322 -
+ --- -
ns1.free.org
+ 217.24.82.35 217.24.80.0/20 AS28855 -
ns2.free.org
+ 88.191.250.23 88.160.0.0/11 AS12322 -
mx records
fondation.free.org
+ 88.191.249.168 88.160.0.0/11 AS12322 -
+ --- -
mail.free.org
+ 88.191.249.132 88.160.0.0/11 AS12322 -
subdomains
redirmail1.reg.free.org
redirmail2.reg.free.org
redirmailfallback.reg.free.org
redirmailobfusc1.reg.free.org
redirmailobfusc2.reg.free.org
redirweb1.reg.free.org
redirweb2.reg.free.org